package com.qk.intercepter;

import com.qk.utils.JwtUtils;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

@Slf4j
@Component
public class TokenInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1. 获取请求路径
//        String uri = request.getRequestURI();// /depts , /users, /login

        //2. 判定是否是登录请求, 如果是, 放行
//        if(uri.contains("/login")){ //登录请求
//            log.info("登录请求: {}, 放行", uri);
//            return true;
//        }

        //3. 获取请求头 token
        String jwt = request.getHeader("token");

        //4. 判断token是否存在, 如果不存在, 响应401状态码
        if(jwt == null || jwt.isEmpty()){
            log.info("请求头token不存在");
            response.setStatus(401);
            return false;
        }

        //5. 解析令牌, 如果解析令牌报错, 响应401状态码
        try {
            JwtUtils.parseToken(jwt);
        }catch (Exception e){
            log.info("令牌解析失败");
            response.setStatus(401);
            return false;
        }

        //6. 放行
        log.info("令牌解析成功, 放行");
        return true;
    }
}
